HD i3 540 is the specific version of the 'GMA/Intel Media Graphics Accelerator' that comes with the CPU 'Core i3-540 3.06GHz'. <br/>With no dedicated memory, it uses system memory up to 1 GB on Windows XP and 1.7GB on Windows Vista/7. Unlike the second gen 'Intel HD Graphics 2000/3000', very demanding games might not run at all and only very old games will run on high settings smoothly.